The correct answer is: 1 2 3 4.
List-I (Green house gas) List-II(Major source)
F. Carbondioxide 1. Burning of fossil fuels
G. Methane 2. Enteric fermentation in cattle
H. Chloroflro carbons 3. Air conditioner and refrigeration units
J. Nitrous oxide 4. Decomposition of organic matter
Carbon dioxide is the most abundant greenhouse gas in the atmosphere, accounting for about 80% of all greenhouse gas emissions. The primary source of human-caused carbon dioxide emissions is from burning fossil fuels for electricity, heat, and transportation.
Methane is the second most abundant greenhouse gas in the atmosphere, accounting for about 10% of all greenhouse gas emissions. The primary source of human-caused methane emissions is from enteric fermentation in cattle, rice cultivation, and landfills.
Chlorofluorocarbons (CFCs) are a type of greenhouse gas that were once widely used in refrigerants and aerosol propellants. However, CFCs were banned in the 1980s because they were found to be damaging to the ozone layer.
Nitrous oxide is a greenhouse gas that is produced by a variety of sources, including agriculture, fossil fuel combustion, and industrial processes.
The correct answer is: 1 2 3 4.